* `btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags & 1)' failed.` in `btrfsck`
@ 2014-07-18 12:01 Karl-Philipp Richter
2014-07-18 12:13 ` Wang Shilong
0 siblings, 1 reply; 3+ messages in thread
From: Karl-Philipp Richter @ 2014-07-18 12:01 UTC (permalink / raw)
To: linux-btrfs
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Hi together,
I'm experiencing the following issues when I invoke `btrfsck` on a
sparse file image with a GPT and one (the only) btrfs partition attached
to a loop device
$ sudo btrfsck --repair --init-csum-tree --init-extent-tree -b
/dev/loop0p1
Incorrect local backref count on 128510738432 root 5 owner 3849475
offset 0 found 1 wanted 0 back 0xbab41270
backpointer mismatch on [128510738432 4096]
ref mismatch on [128510742528 12288] extent item 0, found 1
btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
& 1)' failed.
$ sudo btrfsck --repair --init-csum-tree --init-extent-tree /dev/loop0p1
Incorrect local backref count on 128510726144 root 5 owner 3849470
offset 0 found 1 wanted 0 back 0xbbcb9500
backpointer mismatch on [128510726144 12288]
ref mismatch on [128510738432 4096] extent item 0, found 1
adding new data backref on 128510738432 root 5 owner 3849475 offset
0 found 1
Backref 128510738432 root 5 owner 3849475 offset 0 num_refs 0 not
found in extent tree
Incorrect local backref count on 128510738432 root 5 owner 3849475
offset 0 found 1 wanted 0 back 0xbbcb9630
backpointer mismatch on [128510738432 4096]
ref mismatch on [128510742528 12288] extent item 0, found 1
btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
& 1)' failed.
$ sudo btrfsck --repair /dev/loop0p1
Incorrect local backref count on 130861096960 root 5 owner 22733727
offset 0 found 1 wanted 0 back 0xc7c7d170
backpointer mismatch on [130861096960 8192]
ref mismatch on [130861105152 8192] extent item 0, found 1
btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
& 1)' failed.
$ sudo btrfsck --repair /dev/loop0p1
Backref 130861096960 root 5 owner 22733727 offset 0 num_refs 0 not
found in extent tree
Incorrect local backref count on 130861096960 root 5 owner 22733727
offset 0 found 1 wanted 0 back 0xc7f31170
backpointer mismatch on [130861096960 8192]
ref mismatch on [130861105152 8192] extent item 0, found 1
btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
& 1)' failed.
I'm using `btrfs-progs` 24cf4d8c3ee924b474f68514e0167cc2e602a48d on
Linux 3.16-rc5 (anything else, i.e. older versions, give me immediate
error after start because errornous file system)
I'd like to know whether this (assertion) error is related to a bug or
missing feature in btrfs-progs and might be fixed at some point or
whether this might indicate a completely messed up btrfs.
Best regards,
Karl-P. Richter
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: `btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags & 1)' failed.` in `btrfsck`
2014-07-18 12:01 `btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags & 1)' failed.` in `btrfsck` Karl-Philipp Richter
@ 2014-07-18 12:13 ` Wang Shilong
2014-07-21 18:02 ` Karl-Philipp Richter
0 siblings, 1 reply; 3+ messages in thread
From: Wang Shilong @ 2014-07-18 12:13 UTC (permalink / raw)
To: Karl-Philipp Richter; +Cc: linux-btrfs
Hi,
There are some patches for fsck flighting, they are integrated in David's branches.
You can pull from David's latest branch, and see if it helps:
https://github.com/kdave/btrfs-progs integration-20140704
Have a try and see if it helps anyway.
Thanks,
Wang
> Hi together,
> I'm experiencing the following issues when I invoke `btrfsck` on a
> sparse file image with a GPT and one (the only) btrfs partition attached
> to a loop device
>
> $ sudo btrfsck --repair --init-csum-tree --init-extent-tree -b
> /dev/loop0p1
> Incorrect local backref count on 128510738432 root 5 owner 3849475
> offset 0 found 1 wanted 0 back 0xbab41270
> backpointer mismatch on [128510738432 4096]
> ref mismatch on [128510742528 12288] extent item 0, found 1
> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
> & 1)' failed.
>
> $ sudo btrfsck --repair --init-csum-tree --init-extent-tree /dev/loop0p1
> Incorrect local backref count on 128510726144 root 5 owner 3849470
> offset 0 found 1 wanted 0 back 0xbbcb9500
> backpointer mismatch on [128510726144 12288]
> ref mismatch on [128510738432 4096] extent item 0, found 1
> adding new data backref on 128510738432 root 5 owner 3849475 offset
> 0 found 1
> Backref 128510738432 root 5 owner 3849475 offset 0 num_refs 0 not
> found in extent tree
> Incorrect local backref count on 128510738432 root 5 owner 3849475
> offset 0 found 1 wanted 0 back 0xbbcb9630
> backpointer mismatch on [128510738432 4096]
> ref mismatch on [128510742528 12288] extent item 0, found 1
> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
> & 1)' failed.
>
> $ sudo btrfsck --repair /dev/loop0p1
> Incorrect local backref count on 130861096960 root 5 owner 22733727
> offset 0 found 1 wanted 0 back 0xc7c7d170
> backpointer mismatch on [130861096960 8192]
> ref mismatch on [130861105152 8192] extent item 0, found 1
> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
> & 1)' failed.
>
> $ sudo btrfsck --repair /dev/loop0p1
> Backref 130861096960 root 5 owner 22733727 offset 0 num_refs 0 not
> found in extent tree
> Incorrect local backref count on 130861096960 root 5 owner 22733727
> offset 0 found 1 wanted 0 back 0xc7f31170
> backpointer mismatch on [130861096960 8192]
> ref mismatch on [130861105152 8192] extent item 0, found 1
> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
> & 1)' failed.
>
> I'm using `btrfs-progs` 24cf4d8c3ee924b474f68514e0167cc2e602a48d on
> Linux 3.16-rc5 (anything else, i.e. older versions, give me immediate
> error after start because errornous file system)
>
> I'd like to know whether this (assertion) error is related to a bug or
> missing feature in btrfs-progs and might be fixed at some point or
> whether this might indicate a completely messed up btrfs.
>
> Best regards,
> Karl-P. Richter
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: `btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags & 1)' failed.` in `btrfsck`
2014-07-18 12:13 ` Wang Shilong
@ 2014-07-21 18:02 ` Karl-Philipp Richter
0 siblings, 0 replies; 3+ messages in thread
From: Karl-Philipp Richter @ 2014-07-21 18:02 UTC (permalink / raw)
To: Wang Shilong; +Cc: linux-btrfs
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Hi,
I could `btrfsck --repair` the sparse file with Linux 3.15.6-utopic from
http://kernel.ubuntu.com/~kernel-ppa/mainline/ and btrfsck 3.12-1 (from
btrfs-tools package in Ubuntu 14.04).
Thanks for your hints, Wang!
All the best,
Karl
Am 18.07.2014 14:13, schrieb Wang Shilong:
>
> Hi,
>
> There are some patches for fsck flighting, they are integrated in David's branches.
> You can pull from David's latest branch, and see if it helps:
>
> https://github.com/kdave/btrfs-progs integration-20140704
>
> Have a try and see if it helps anyway.
>
> Thanks,
> Wang
>
>> Hi together,
>> I'm experiencing the following issues when I invoke `btrfsck` on a
>> sparse file image with a GPT and one (the only) btrfs partition attached
>> to a loop device
>>
>> $ sudo btrfsck --repair --init-csum-tree --init-extent-tree -b
>> /dev/loop0p1
>> Incorrect local backref count on 128510738432 root 5 owner 3849475
>> offset 0 found 1 wanted 0 back 0xbab41270
>> backpointer mismatch on [128510738432 4096]
>> ref mismatch on [128510742528 12288] extent item 0, found 1
>> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
>> & 1)' failed.
>>
>> $ sudo btrfsck --repair --init-csum-tree --init-extent-tree /dev/loop0p1
>> Incorrect local backref count on 128510726144 root 5 owner 3849470
>> offset 0 found 1 wanted 0 back 0xbbcb9500
>> backpointer mismatch on [128510726144 12288]
>> ref mismatch on [128510738432 4096] extent item 0, found 1
>> adding new data backref on 128510738432 root 5 owner 3849475 offset
>> 0 found 1
>> Backref 128510738432 root 5 owner 3849475 offset 0 num_refs 0 not
>> found in extent tree
>> Incorrect local backref count on 128510738432 root 5 owner 3849475
>> offset 0 found 1 wanted 0 back 0xbbcb9630
>> backpointer mismatch on [128510738432 4096]
>> ref mismatch on [128510742528 12288] extent item 0, found 1
>> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
>> & 1)' failed.
>>
>> $ sudo btrfsck --repair /dev/loop0p1
>> Incorrect local backref count on 130861096960 root 5 owner 22733727
>> offset 0 found 1 wanted 0 back 0xc7c7d170
>> backpointer mismatch on [130861096960 8192]
>> ref mismatch on [130861105152 8192] extent item 0, found 1
>> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
>> & 1)' failed.
>>
>> $ sudo btrfsck --repair /dev/loop0p1
>> Backref 130861096960 root 5 owner 22733727 offset 0 num_refs 0 not
>> found in extent tree
>> Incorrect local backref count on 130861096960 root 5 owner 22733727
>> offset 0 found 1 wanted 0 back 0xc7f31170
>> backpointer mismatch on [130861096960 8192]
>> ref mismatch on [130861105152 8192] extent item 0, found 1
>> btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags
>> & 1)' failed.
>>
>> I'm using `btrfs-progs` 24cf4d8c3ee924b474f68514e0167cc2e602a48d on
>> Linux 3.16-rc5 (anything else, i.e. older versions, give me immediate
>> error after start because errornous file system)
>>
>> I'd like to know whether this (assertion) error is related to a bug or
>> missing feature in btrfs-progs and might be fixed at some point or
>> whether this might indicate a completely messed up btrfs.
>>
>> Best regards,
>> Karl-P. Richter
>>
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-07-18 12:01 `btrfsck: extent_io.c:612: free_extent_buffer: Assertion `!(eb->flags & 1)' failed.` in `btrfsck` Karl-Philipp Richter
2014-07-18 12:13 ` Wang Shilong
2014-07-21 18:02 ` Karl-Philipp Richter
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